Pymil is a simple Carte internationale du Monde au Millionième nomenclature coder. You might find it useful for searching maps for a specific coordinate pair.
usage: pymil.py [-h] [--geojson] [--scale SCALE] latitude longitude
calculates CIM code for given coordinate pair.
- positional arguments:
- latitude longitude
- optional arguments:
-h, --help show this help message and exit --geojson prints geoJSON of the map area instead of the code. --scale SCALE scale to be encoded, defaults to 1:25.000.
The CIM uses the geographic coordinate system as background for the Earth separation, each individual chart receives a code that is composed by two letters and a number. The two letters represent respectively the hemisphere (north or south) and a interval of 4° in Earth's latitude, which follow the alphabetical order starting from the Equator and increasing to the poles. The number represents a interval of 6° in longitude, marked with numbers and starting in the 180° meridian.
The letters that follow this are subdivisions of the basic millionth chart and indicates charts in scales 1 to 500,000, 250,000, 100,000, 50,000 and 25,000. The letter/number used in each part of the code deppends on the relative position of the chart to its smaller scale counterpar.
- Make better docs.
The class CIM includes a __geo_interface__, as defined in https://gist.github.com/sgillies/2217756
- Luis Urtiga for the CIM nomenclature explanation.